[OpenSIPS-Users] dispatcher "fail-over" doesn't seem happy

[Jock McKechnie]

On Thu, Apr 1, 2010 at 10:26 AM, Brett Nemeroff <brett at nemeroff.com> wrote:

> Where is your failure route? :)
> -Brett
>
>
I intentionally chose to not include it, along with the other 200 lines of
config, for simplicity, but you're right, given this is a failure, I clearly
should've, duh :)

failure_route[2] {
        if (t_was_cancelled()) {
                xlog( "L_NOTICE", "[$Tf] FR: transaction cancelled -
exiting\n" );
                exit;
                }

        # If fr_timer expires t_check_status("408") is true, although $rs is
<null>
         if( t_check_status("408") ){
                xlog( "L_NOTICE", "[$Tf] FR: $ci -- TIMEOUT for Gateway
$rd\n" );
         } else {
                xlog( "L_NOTICE", "[$Tf] FR: $ci -- $rs reason $rr\n" );
                }

        # 403 -- typically ISDN network says 'not a valid number' etc..
        if( t_check_status("403") ){
                xlog("L_WARN", "[$Tf] FR: $ci -- SIP-$rs Forbidden -> ISDN
Cause Code 1\n" );
                return;
                }

        if( ds_next_domain() ){
                xlog( "L_NOTICE", "[$Tf] FR: $ci Next gateway $fU -> $tU via
$rd \n" );

                t_on_failure("2");

                if( !t_relay() ){
                        xlog( "L_WARN", "[$Tf] FR: $ci -- ERROR - Cannot
t_relay() -- $fU -> $tU via $rd\n" );
                        return;
                        }
                return;
        } else {
                xlog( "L_WARN", "[$Tf] FR: $ci No more gateways -> 503.\n"
);
                t_reply("503", "Service unavailable -- no more gateways" );
                return;
                }

        }

 - Jock




> On Thu, Apr 1, 2010 at 11:20 AM, Jock McKechnie
> <jock.mckechnie at gmail.com> wrote:
> > Greetings all;
> >
> > I'm attempting to set up a fail-over only scenario using dispatcher and
> am
> > encountering some problems. I'm using dispatcher since we're already
> > utilising it for load balancing, so it makes sense to reuse the tool, and
> > according to the OpenSIPS 1.6 dispatcher module documentation it supports
> > fail-over.
> >
> > If the destination server is running, everything works as expected - algo
> 8
> > (which OpenSIPS logs as not found and defaulting to the first entry)
> pushes
> > the call to the first server at all times. However if I block the route
> to
> > the destination server like so:
> > /sbin/route add -host 192.168.0.99 reject
> > Then instead of failing over I get a SIP 477 (Send failed) error.
> >
> > The chunk of routing looks like so:
> >
> > xlog("L_WARN", "[$Tf] Found failover, working on set: 1101\n");
> > if (!ds_select_domain("1101", "8")) {
> >     t_reply("503", "Unable to locate failover set requested");
> >     return;
> >     };
> >
> > route(1);
> > };
> >
> > route[1] {
> > t_on_failure("2");
> >
> > xlog("L_WARN", "Attempting to relay call to $ru\n");
> >
> > if (!t_relay()) {
> >     xlog("L_WARN", "[$Tf] t_relay fail\n");
> >     return;
> >     }
> > return;
> > }
> >
> >
> >
> > The log contains:
> > [Thu Apr  1 11:14:35 2010] Found failover, working on set: 1101
> > WARNING:dispatcher:ds_select_dst: algo 8 not implemented - using first
> > entry...
> > Attempting to relay call to sip:+12125551212 at 192.168.0.99:5060
> > ERROR:core:udp_send: sendto(sock,0xb3b9bd28,1039,0,0xb3ba2cf4,16):
> Network
> > is unreachable(101)
> > ERROR:tm:msg_send: udp_send failed
> > ERROR:tm:t_forward_nonack: sending request failed
> > [Thu Apr  1 11:14:35 2010] Found failover, working on set: 1101
> > WARNING:dispatcher:ds_select_dst: algo 8 not implemented - using first
> > entry...
> > Attempting to relay call to sip:+12125551212 at 192.168.0.99:5060
> >
> > This suggests to me that instead of failing over it's simply retrying the
> > first entry, which it shouldn't be, and after finding it out for a second
> > time (and thus exhausting the two-entry set), gives up.
> >
> > Any thoughts?
> >
> >  - JP
> >
> > _______________________________________________
> > Users mailing list
> > Users at lists.opensips.org
> > http://lists.opensips.org/cgi-bin/mailman/listinfo/users
> >
> >
>
> _______________________________________________
> Users mailing list
> Users at lists.opensips.org
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>
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